try at ww.moddb.com/mods and then search for grand theft auto anderius

I found the mod in that link: http://ww.youtube.com/redirect?q=http%3A%2F%2Fbbhd.v-2x.com%2Ffiles%2Fmods%2Fgta%2Fanderius%2Finstall_anderius-alien-city.exe&session_token=TWvke4iYKN_EFbLDwA60i6838cF8MTI5MzE5NjAyNw%3D%3D
I have not tested the mod... so i don't know if it works...